I set a rule for myself: when the lending position is only "three steps" away from the liquidation line, don't force it, just pause for a moment.

The first step is not to bet on a rebound, but to clarify the collateral and liabilities, and if possible, repay a little first, even if it's just pushing the red line a tiny bit further out, it will stabilize the mindset a lot;
The second step is to decide whether to add collateral, but only use the portion I originally plan to hold long-term, and not include the money I need for short-term use.
Recently, there's been talk about increasing taxes and tightening compliance in some places, and honestly, when the expectations for deposits and withdrawals change, market sentiment can go haywire.
At such times, I prefer to earn fewer transaction fees rather than be caught off guard by a sudden "volatility" event.
Anyway, I don't seek the optimal solution, I just want to sleep well.